Java tutorial
/** * Copyright (c) 2000-present Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. */ package com.liferay.dynamic.data.mapping.io.internal; import com.liferay.dynamic.data.mapping.form.field.type.DDMFormFieldValueJSONDeserializer; import com.liferay.dynamic.data.mapping.io.DDMFormValuesJSONDeserializer; import com.liferay.dynamic.data.mapping.model.DDMForm; import com.liferay.dynamic.data.mapping.model.DDMFormField; import com.liferay.dynamic.data.mapping.model.LocalizedValue; import com.liferay.dynamic.data.mapping.model.UnlocalizedValue; import com.liferay.dynamic.data.mapping.model.Value; import com.liferay.dynamic.data.mapping.storage.DDMFormFieldValue; import com.liferay.dynamic.data.mapping.storage.DDMFormValues; import com.liferay.portal.kernel.exception.PortalException; import com.liferay.portal.kernel.json.JSONArray; import com.liferay.portal.kernel.json.JSONException; import com.liferay.portal.kernel.json.JSONFactory; import com.liferay.portal.kernel.json.JSONObject; import com.liferay.portal.kernel.language.LanguageUtil; import com.liferay.portal.kernel.util.LocaleUtil; import com.liferay.portal.kernel.util.MapUtil; import com.liferay.portal.kernel.util.Validator; import java.util.ArrayList; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Locale; import java.util.Map; import java.util.Objects; import java.util.Set; import java.util.concurrent.ConcurrentHashMap; import org.osgi.service.component.annotations.Component; import org.osgi.service.component.annotations.Reference; import org.osgi.service.component.annotations.ReferenceCardinality; import org.osgi.service.component.annotations.ReferencePolicy; import org.osgi.service.component.annotations.ReferencePolicyOption; /** * @author Marcellus Tavares */ @Component(immediate = true) public class DDMFormValuesJSONDeserializerImpl implements DDMFormValuesJSONDeserializer { @Override public DDMFormValues deserialize(DDMForm ddmForm, String serializedDDMFormValues) throws PortalException { try { JSONObject jsonObject = _jsonFactory.createJSONObject(serializedDDMFormValues); DDMFormValues ddmFormValues = new DDMFormValues(ddmForm); setDDMFormValuesAvailableLocales(jsonObject.getJSONArray("availableLanguageIds"), ddmFormValues); setDDMFormValuesDefaultLocale(jsonObject.getString("defaultLanguageId"), ddmFormValues); setDDMFormFieldValues(jsonObject.getJSONArray("fieldValues"), ddmForm, ddmFormValues); setDDMFormLocalizedValuesDefaultLocale(ddmFormValues); return ddmFormValues; } catch (JSONException jsone) { throw new PortalException(jsone); } } @Reference(cardinality = ReferenceCardinality.MULTIPLE, policy = ReferencePolicy.DYNAMIC, policyOption = ReferencePolicyOption.GREEDY, unbind = "removeDDMFormFieldValueJSONDeserializer") protected void addDDMFormFieldValueJSONDeserializer( DDMFormFieldValueJSONDeserializer ddmFormFieldValueJSONDeserializer, Map<String, Object> properties) { String type = MapUtil.getString(properties, "ddm.form.field.type.name"); if (Validator.isNull(type)) { return; } _ddmFormFieldValueJSONDeserializers.put(type, ddmFormFieldValueJSONDeserializer); } protected Set<Locale> getAvailableLocales(JSONArray jsonArray) { Set<Locale> availableLocales = new HashSet<>(); if (jsonArray == null) { return availableLocales; } for (int i = 0; i < jsonArray.length(); i++) { Locale availableLocale = LocaleUtil.fromLanguageId(jsonArray.getString(i)); availableLocales.add(availableLocale); } return availableLocales; } protected DDMFormFieldValue getDDMFormFieldValue(JSONObject jsonObject, Map<String, DDMFormField> ddmFormFieldsMap) { DDMFormFieldValue ddmFormFieldValue = new DDMFormFieldValue(); ddmFormFieldValue.setInstanceId(jsonObject.getString("instanceId")); ddmFormFieldValue.setName(jsonObject.getString("name")); setDDMFormFieldValueValue(jsonObject, ddmFormFieldsMap.get(jsonObject.getString("name")), ddmFormFieldValue); setNestedDDMFormFieldValues(jsonObject.getJSONArray("nestedFieldValues"), ddmFormFieldsMap, ddmFormFieldValue); return ddmFormFieldValue; } protected DDMFormFieldValueJSONDeserializer getDDMFormFieldValueJSONDeserializer(DDMFormField ddmFormField) { if (ddmFormField == null) { return null; } return _ddmFormFieldValueJSONDeserializers.get(ddmFormField.getType()); } protected List<DDMFormFieldValue> getDDMFormFieldValues(JSONArray jsonArray, Map<String, DDMFormField> ddmFormFieldsMap) { List<DDMFormFieldValue> ddmFormFieldValues = new ArrayList<>(); for (int i = 0; i < jsonArray.length(); i++) { DDMFormFieldValue ddmFormFieldValue = getDDMFormFieldValue(jsonArray.getJSONObject(i), ddmFormFieldsMap); ddmFormFieldValues.add(ddmFormFieldValue); } return ddmFormFieldValues; } protected LocalizedValue getLocalizedValue(JSONObject jsonObject) { LocalizedValue localizedValue = new LocalizedValue(); Iterator<String> itr = jsonObject.keys(); while (itr.hasNext()) { String languageId = itr.next(); localizedValue.addString(LocaleUtil.fromLanguageId(languageId), jsonObject.getString(languageId)); } return localizedValue; } protected Value getValue(DDMFormField ddmFormField, JSONObject jsonObject) { DDMFormFieldValueJSONDeserializer ddmFormFieldValueJSONDeserializer = getDDMFormFieldValueJSONDeserializer( ddmFormField); if (ddmFormFieldValueJSONDeserializer != null) { return ddmFormFieldValueJSONDeserializer.deserialize(ddmFormField, String.valueOf(jsonObject.get("value"))); } JSONObject valueJSONObject = jsonObject.getJSONObject("value"); if (isLocalized(valueJSONObject)) { return getLocalizedValue(valueJSONObject); } else { return new UnlocalizedValue(jsonObject.getString("value")); } } protected boolean isLocalized(JSONObject jsonObject) { if (jsonObject == null) { return false; } Iterator<String> keys = jsonObject.keys(); while (keys.hasNext()) { String key = keys.next(); if (!LanguageUtil.isAvailableLocale(key)) { return false; } } return true; } protected void removeDDMFormFieldValueJSONDeserializer( DDMFormFieldValueJSONDeserializer ddmFormFieldValueJSONDeserializer, Map<String, Objects> properties) { String type = MapUtil.getString(properties, "ddm.form.field.type.name"); _ddmFormFieldValueJSONDeserializers.remove(type); } protected void setDDMFormFieldValueLocalizedValueDefaultLocale(DDMFormFieldValue ddmFormFieldValue, Locale defaultLocale) { Value value = ddmFormFieldValue.getValue(); if ((value != null) && value.isLocalized()) { value.setDefaultLocale(defaultLocale); } for (DDMFormFieldValue nestedDDMFormFieldValue : ddmFormFieldValue.getNestedDDMFormFieldValues()) { setDDMFormFieldValueLocalizedValueDefaultLocale(nestedDDMFormFieldValue, defaultLocale); } } protected void setDDMFormFieldValues(JSONArray jsonArray, DDMForm ddmForm, DDMFormValues ddmFormValues) { List<DDMFormFieldValue> ddmFormFieldValues = getDDMFormFieldValues(jsonArray, ddmForm.getDDMFormFieldsMap(true)); ddmFormValues.setDDMFormFieldValues(ddmFormFieldValues); } protected void setDDMFormFieldValueValue(JSONObject jsonObject, DDMFormField ddmFormField, DDMFormFieldValue ddmFormFieldValue) { String valueString = jsonObject.getString("value", null); if (valueString == null) { return; } Value value = getValue(ddmFormField, jsonObject); ddmFormFieldValue.setValue(value); } protected void setDDMFormLocalizedValuesDefaultLocale(DDMFormValues ddmFormValues) { for (DDMFormFieldValue ddmFormFieldValue : ddmFormValues.getDDMFormFieldValues()) { setDDMFormFieldValueLocalizedValueDefaultLocale(ddmFormFieldValue, ddmFormValues.getDefaultLocale()); } } protected void setDDMFormValuesAvailableLocales(JSONArray jsonArray, DDMFormValues ddmFormValues) { Set<Locale> availableLocales = getAvailableLocales(jsonArray); ddmFormValues.setAvailableLocales(availableLocales); } protected void setDDMFormValuesDefaultLocale(String defaultLanguageId, DDMFormValues ddmFormValues) { Locale defaultLocale = LocaleUtil.fromLanguageId(defaultLanguageId); ddmFormValues.setDefaultLocale(defaultLocale); Set<Locale> availableLocales = ddmFormValues.getAvailableLocales(); if ((availableLocales != null) && !availableLocales.contains(defaultLocale)) { availableLocales.add(defaultLocale); } } @Reference(unbind = "-") protected void setJSONFactory(JSONFactory jsonFactory) { _jsonFactory = jsonFactory; } protected void setNestedDDMFormFieldValues(JSONArray jsonArray, Map<String, DDMFormField> ddmFormFieldsMap, DDMFormFieldValue ddmFormFieldValue) { if ((jsonArray == null) || (jsonArray.length() == 0)) { return; } List<DDMFormFieldValue> nestedDDMFormFieldValues = getDDMFormFieldValues(jsonArray, ddmFormFieldsMap); ddmFormFieldValue.setNestedDDMFormFields(nestedDDMFormFieldValues); } private final Map<String, DDMFormFieldValueJSONDeserializer> _ddmFormFieldValueJSONDeserializers = new ConcurrentHashMap<>(); private JSONFactory _jsonFactory; }